ABSTRACT: Tilapia fish
(Oreochromis niloticus) is one of freshwater commodities gained big
attentionfrom governments abd obsevers of world fisheries issues, especially
related to raising nutritients in countries – developing countries. The succes
of Tilapias related to environment healthy and fish disease caused by bacteria.
One of bacteria found in aquatic ecosystems is Escherichia coli. This research
has a purpose to know there are Escherichia coli at Tilapia fish cultivation
and to know the existence of contamination from cultivation media. This
research is done on February 24th until March 6th, 2015. The research used
sample purposive sampling, sample was taken at three fishpond locations, there
was slamaran and Degayu. Then, sample was analyzed at Laboratory testing and
Quality Control of Fishery Product ( LPPMHP), Pekalongan City. The research
result show that Escherichia coli content in first fishpond is 3,6 MPN/gr,
second fishpond is 9,4 MPN/gr and the last fishpond is 9,3 MPN/gr. Another
side, Escherichia coli content of meat Tilapias is less than 3 MPN/gr for each
cultivation, either in Slamaran or Degayu. It is stated that the content of
E.coli in the pond water does not contaminate tilapia fish. Tilapia fish is
safe for consumption.